Movement Wear and Freezing Damage to Excavated Bottles

In old dump sites, where a lot of bio-debris, wood, paper, metal and tin cans were discarded along with the bottles you are going after, there's a lot of movement in the ground over the following decades. These degradable items would continuously shrink and move over the years, causing a lot of activity, movement and settling to the ground around them. This can cause a lot of wear over time to a bottle, scratching, cracking, pinging, bruises, stress-fractures and total breakage.